From: Scott Wood <oss@buserror.net>
To: Jason Yan <yanaijie@huawei.com>,
mpe@ellerman.id.au, linuxppc-dev@lists.ozlabs.org,
diana.craciun@nxp.com, christophe.leroy@c-s.fr,
benh@kernel.crashing.org, paulus@samba.org, npiggin@gmail.com,
keescook@chromium.org, kernel-hardening@lists.openwall.com
Cc: dja@axtens.net, linux-kernel@vger.kernel.org, zhaohongjiang@huawei.com
Subject: Re: [PATCH v4 6/6] powerpc/fsl_booke/kaslr: rename kaslr-booke32.rst to kaslr-booke.rst and add 64bit part
Date: Fri, 20 Mar 2020 00:08:53 -0500 [thread overview]
Message-ID: <db764910fe2de8ae2d63c6adbb0b71d32c0e3886.camel@buserror.net> (raw)
In-Reply-To: <20200306064033.3398-7-yanaijie@huawei.com>
On Fri, 2020-03-06 at 14:40 +0800, Jason Yan wrote:
> @@ -38,5 +41,29 @@ bit of the entropy to decide the index of the 64M zone.
> Then we chose a
>
> kernstart_virt_addr
>
> +
> +KASLR for Freescale BookE64
> +---------------------------
> +
> +The implementation for Freescale BookE64 is similar as BookE32. One
similar to
> +difference is that Freescale BookE64 set up a TLB mapping of 1G during
> +booting. Another difference is that ppc64 needs the kernel to be
> +64K-aligned. So we can randomize the kernel in this 1G mapping and make
> +it 64K-aligned. This can save some code to creat another TLB map at early
create
-Scott
next prev parent reply other threads:[~2020-03-20 5:12 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-06 6:40 [PATCH v4 0/6] implement KASLR for powerpc/fsl_booke/64 Jason Yan
2020-03-06 6:40 ` [PATCH v4 1/6] powerpc/fsl_booke/kaslr: refactor kaslr_legal_offset() and kaslr_early_init() Jason Yan
2020-03-06 6:40 ` [PATCH v4 2/6] powerpc/fsl_booke/64: introduce reloc_kernel_entry() helper Jason Yan
2020-03-06 6:40 ` [PATCH v4 3/6] powerpc/fsl_booke/64: implement KASLR for fsl_booke64 Jason Yan
2020-03-06 6:40 ` [PATCH v4 4/6] powerpc/fsl_booke/64: do not clear the BSS for the second pass Jason Yan
2020-03-06 6:40 ` [PATCH v4 5/6] powerpc/fsl_booke/64: clear the original kernel if randomized Jason Yan
2020-03-06 6:40 ` [PATCH v4 6/6] powerpc/fsl_booke/kaslr: rename kaslr-booke32.rst to kaslr-booke.rst and add 64bit part Jason Yan
2020-03-20 5:08 ` Scott Wood [this message]
2020-03-16 12:19 ` [PATCH v4 0/6] implement KASLR for powerpc/fsl_booke/64 Jason Yan
2020-03-20 3:19 ` Daniel Axtens
2020-03-20 6:16 ` Jason Yan
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